I got 4 SS up to floor 20 or 15.
Then at floor 21 i got egg and now I am on lv 36. But lv 36 gives mission egg… i never get what I want in those eggs… so how do I get my last 5th SS for fusion?
If it said that all the prizes have been claimed, the only way for you to win one currently is from mission eggs or gold mission eggs; if the mission is repeated as this one is a repeat of a previous mission, then you just have to wait.
where do I check if all the prize has been claimed?
I still cant beat boss yet… I have only 5 lv 99. I am making 5 more then I will be able to finish boss.
It will tell you after you beat the final boss.
so I just beat boss and got SS. if I want more of SS. Do i start with floor 35? or I can get those 1st form if I start at floor 1?
nvm… no egg or ss again 
only exp.
Yep, unless it says otherwise, one time only